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Validate, clean, and standardize address data
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  1. Lob
  2. FAQ
  3. Address Verification

Address Verification

  • What is the Lob Confidence Score?
  • Can I add autocomplete and verification to my HTML forms?
  • Do you have a Zip Lookup API?
  • Is your US Address Verification API CASS Certified?
  • What states does the US Address Verification API support?
  • What countries does the International Address Verification API support?
  • Can I verify an address with my Test API key?
  • Why is an address returned in uppercase letters after it has been verified?
  • How often is your data updated?
  • For International Verification, if I submit in a language other than English, will I get the result in the language I submitted the verification in or in English?
  • How can I keep track of the number of verifications I have completed under my account?
  • Why did my address verification fail when Google Maps was able to successfully find it?
  • How is Lob’s Address Verification API priced?
  • How does billing for Lob's Address Verification plans work?
  • I'm currently on the Address Verification Developer plan. What happens if I upgrade in the middle of a month?
  • I'm currently on a paid monthly Address Verification plan. What happens if I upgrade in the middle of a month?
  • How can I downgrade my Address Verification plan?
  • If I am on an Address Verification subscription and do not use all of my included verifications in a month, do they roll-over?
  • What if I send more verifications than the amount included in my plan?
  • Does the US verification plan cover both US verifications and US ZIP lookups?
  • If an address is unsuccessfully verified, does that count towards my monthly volume?
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